When the narcissistic Water God Ha Baek visits earth in order to find a magical stone powerful enough to help him claim his throne, he seeks out the help of his servant and destined bride, psychiatrist So Ah, whose family is fated to serve the water god for generations. The problem is that she has no belief in the gods and initially mistakes him for a total lunatic suffering from delusions. Things get even harder for Ha Baek, when the Wind God Bi Ryum, the Water Goddess Mu Ra, and a hotel CEO/Demi-God Hu Ye show up to complicate things and stop him from reaching his goal.